CN113664154A - Casting process for pump valve casting - Google Patents
Casting process for pump valve casting Download PDFInfo
- Publication number
- CN113664154A CN113664154A CN202110954833.1A CN202110954833A CN113664154A CN 113664154 A CN113664154 A CN 113664154A CN 202110954833 A CN202110954833 A CN 202110954833A CN 113664154 A CN113664154 A CN 113664154A
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- Prior art keywords
- casting
- mold
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- pump valve
- steps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000005266 casting Methods 0.000 title claims abstract description 99
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000007689 inspection Methods 0.000 claims abstract description 11
- 238000004381 surface treatment Methods 0.000 claims abstract description 10
- 238000013461 design Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 4
- 229910000570 Cupronickel Inorganic materials 0.000 claims abstract description 4
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000000137 annealing Methods 0.000 claims description 9
- 238000007528 sand casting Methods 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000006247 magnetic powder Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000011179 visual inspection Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001126 Compacted graphite iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910001296 Malleable iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Compressor (AREA)
Abstract
The invention discloses a casting process for a pump valve casting, which comprises the following manufacturing process steps: mold design → mold processing → casting material melting → casting processing → cooling → surface treatment → inspection → finished product, the mold design step is: designing a mold size chart through a part size chart, dividing the mold into different components by combining casting conditions, splicing and using, wherein the mold processing steps are as follows: and (4) cutting the part through machining, wherein the die part is made of copper-nickel alloy or aluminum alloy. According to the invention, through optimizing the operation steps, the new product is simplified from the step of designing to producing the finished product, meanwhile, the composition of production raw materials is simplified, the use cost of the raw materials is reduced, the casting process is adopted for casting, the cost use in the casting process is reduced, the operation difficulty is low, the operation of workers is convenient, the production difficulty of the mold is reduced through the division, assembly and use of the mold, and the assembly and use of the workers are convenient.
Description
Technical Field
The invention relates to the technical field of pump valve castings, in particular to a casting process for a pump valve casting.
Background
The casting is a metal molding object obtained by various casting methods, namely, the smelted liquid metal is poured into a casting mold prepared in advance by pouring, injecting, sucking or other casting methods, and after the casting mold is cooled and is subjected to subsequent processing means such as grinding and the like, the object with certain shape, size and performance is obtained, and the casting has various classification methods: according to the different metal materials, the cast iron parts are divided into steel casting parts, iron casting parts, copper casting parts, aluminum casting parts, magnesium casting parts, zinc casting parts, titanium casting parts and the like, and each kind of casting parts can be further divided into different kinds according to the chemical components or metallographic structures, for example, the iron casting parts can be divided into grey iron casting parts, nodular iron casting parts, vermicular iron casting parts, malleable iron casting parts, alloy iron casting parts and the like; according to different casting mould forming methods, castings can be divided into common sand casting, metal casting, die casting, centrifugal casting, continuous casting, investment casting, ceramic casting, electroslag remelting casting, bimetallic casting and the like, wherein the common sand casting is most applied and accounts for about 80% of the yield of all castings, and non-ferrous castings such as aluminum, magnesium, zinc and the like are mostly die castings.
In the production process of the pump valve, the pump valve is mostly produced by adopting a casting method, the casting process of the pump valve casting in the existing market is complex, the product processing period is long, the human resource consumption is high in the production process, the production cost of the product is high, and the production and popularization of the product are not facilitated.
Disclosure of Invention
The invention aims to provide a casting process for a pump valve casting, which has the advantages of simplicity and quickness, and solves the problems that the casting process of the pump valve casting in the existing market is complex, the processing period of a product is long, the consumption of human resources in the production process is high, the production cost of the product is high, and the production and popularization of the product are not facilitated.
In order to achieve the purpose, the invention provides the following technical scheme: a casting process for a pump valve casting comprises the following manufacturing process steps: mold design → mold processing → casting material melting → casting processing → cooling → surface treatment → inspection → finished product.
Preferably, the mold design step is: and designing a mold size chart through the part size chart, and dividing the mold into different components according to casting conditions for splicing use.
Preferably, the mold processing steps are as follows: the part is machined, the part is made of copper-nickel alloy or aluminum alloy, the machining precision error range of the die is 1.5-2.5 micrometers, and the die is processed by a sand casting process after the die is machined, so that a casting cavity is generated.
Preferably, the smelting step of the casting material mainly comprises the following steps: heating and smelting a metal material, wherein the molten metal comprises the following main components in parts by mass: 90-92 parts of iron, 2.5-3.5 parts of carbon, 1.8-3 parts of silicon, 0.8-1.3 parts of manganese, 0.8-1.3 parts of phosphorus and 0.8-1.3 parts of sulfur, wherein the sum of the mass components of the manganese, the phosphorus and the sulfur is not more than three parts, and the raw materials are smelted at high temperature to obtain molten metal.
Preferably, the casting processing steps are as follows: and introducing the obtained metal solution into the inner cavity of the sand-casting mold in batches, pouring the metal solution into eighty percent to eighty-five percent of the inner cavity of the mold for the first time, and filling the rest space after waiting for one minute.
Preferably, the cooling step is: and (3) placing the workpiece to be naturally cooled, demolding, treating the sand on the surface of the casting by using a pneumatic tool, annealing after the treatment is finished, wherein the annealing process adopts isothermal annealing.
Preferably, the surface treatment step is: and (3) polishing burrs of the workpiece, and after polishing is finished, placing the workpiece in an inner cavity of the shot blasting machine for surface treatment, wherein the treatment time is not less than one hour.
Preferably, the checking step is: and (3) carrying out size inspection, visual inspection of appearance and surface and mechanical property test on the treated product, wherein the inspection of the surface crack of the product adopts magnetic powder detection or ultrasonic detection.
Preferably, the finished product comprises the following steps: and packaging and registering the qualified products, and then warehousing and storing.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through optimizing the operation steps, the new product is simplified from the step of designing to producing the finished product, meanwhile, the composition of production raw materials is simplified, the use cost of the raw materials is reduced, the casting process is adopted for casting, the cost use in the casting process is reduced, the operation difficulty is low, the operation of workers is convenient, the production difficulty of the mold is reduced through the division, assembly and use of the mold, and the assembly and use of the workers are convenient.
Detailed Description
It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A casting process for a pump valve casting comprises the following manufacturing process steps: mold design → mold processing → casting material melting → casting processing → cooling → surface treatment → inspection → finished product.
In this embodiment, specifically, the mold design steps are: and designing a mold size chart through the part size chart, and dividing the mold into different components according to casting conditions for splicing use.
In this embodiment, specifically, the mold processing steps are: the part is machined, the part is made of copper-nickel alloy or aluminum alloy, the machining precision error range of the die is 1.5-2.5 micrometers, and the die is processed by a sand casting process after the die is machined, so that a casting cavity is generated.
In this embodiment, specifically, the casting material smelting step mainly includes: heating and smelting a metal material, wherein the molten metal comprises the following main components in parts by mass: 90-92 parts of iron, 2.5-3.5 parts of carbon, 1.8-3 parts of silicon, 0.8-1.3 parts of manganese, 0.8-1.3 parts of phosphorus and 0.8-1.3 parts of sulfur, wherein the sum of the mass components of the manganese, the phosphorus and the sulfur is not more than three parts, and the raw materials are smelted at high temperature to obtain molten metal.
In this embodiment, specifically, the casting process includes the following steps: and introducing the obtained metal solution into the inner cavity of the sand-casting mold in batches, pouring the metal solution into eighty percent to eighty-five percent of the inner cavity of the mold for the first time, and filling the rest space after waiting for one minute.
In this embodiment, specifically, the cooling step is: and (3) placing the workpiece to be naturally cooled, demolding, treating the sand on the surface of the casting by using a pneumatic tool, annealing after the treatment is finished, wherein the annealing process adopts isothermal annealing.
In this embodiment, specifically, the surface treatment step is: and (3) polishing burrs of the workpiece, and after polishing is finished, placing the workpiece in an inner cavity of the shot blasting machine for surface treatment, wherein the treatment time is not less than one hour.
In this embodiment, the checking step specifically includes: and (3) carrying out size inspection, visual inspection of appearance and surface and mechanical property test on the treated product, wherein the inspection of the surface crack of the product adopts magnetic powder detection or ultrasonic detection.
In this embodiment, the specific finished product steps are: and packaging and registering the qualified products, and then warehousing and storing.
When the method is used, the operation steps are optimized, the new product is simplified by the steps from design to production of the finished product, meanwhile, the composition of production raw materials is simplified, the use cost of the raw materials is reduced, the casting process is adopted, the cost use in the casting process is reduced, the operation difficulty is low, the method is convenient for workers to operate, the production difficulty of the mold is reduced through the division, the assembly and the use of the mold, the assembly and the use of the workers are convenient, and the problems that the casting process of pump valve castings in the existing market is complex, the product processing period is long, the human resource consumption is high in the production process, the production cost of the product is high, and the product production and the popularization are not facilitated are solved, so that the method is suitable for popularization and use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A casting process for a pump valve casting, characterized by: the manufacturing process comprises the following steps: mold design → mold processing → casting material melting → casting processing → cooling → surface treatment → inspection → finished product.
2. A casting process for a pump valve casting according to claim 1, wherein: the die design steps are as follows: and designing a mold size chart through the part size chart, and dividing the mold into different components according to casting conditions for splicing use.
3. A casting process for a pump valve casting according to claim 1, wherein: the die processing steps are as follows: the part is machined, the part is made of copper-nickel alloy or aluminum alloy, the machining precision error range of the die is 1.5-2.5 micrometers, and the die is processed by a sand casting process after the die is machined, so that a casting cavity is generated.
4. A casting process for a pump valve casting according to claim 1, wherein: the casting material smelting steps mainly comprise: heating and smelting a metal material, wherein the molten metal comprises the following main components in parts by mass: 90-92 parts of iron, 2.5-3.5 parts of carbon, 1.8-3 parts of silicon, 0.8-1.3 parts of manganese, 0.8-1.3 parts of phosphorus and 0.8-1.3 parts of sulfur, wherein the sum of the mass components of the manganese, the phosphorus and the sulfur is not more than three parts, and the raw materials are smelted at high temperature to obtain molten metal.
5. A casting process for a pump valve casting according to claim 1, wherein: the casting processing steps are as follows: and introducing the obtained metal solution into the inner cavity of the sand-casting mold in batches, pouring the metal solution into eighty percent to eighty-five percent of the inner cavity of the mold for the first time, and filling the rest space after waiting for one minute.
6. A casting process for a pump valve casting according to claim 1, wherein: the cooling step is as follows: and (3) placing the workpiece to be naturally cooled, demolding, treating the sand on the surface of the casting by using a pneumatic tool, annealing after the treatment is finished, wherein the annealing process adopts isothermal annealing.
7. A casting process for a pump valve casting according to claim 1, wherein: the surface treatment step comprises: and (3) polishing burrs of the workpiece, and after polishing is finished, placing the workpiece in an inner cavity of the shot blasting machine for surface treatment, wherein the treatment time is not less than one hour.
8. A casting process for a pump valve casting according to claim 1, wherein: the inspection steps are as follows: and (3) carrying out size inspection, visual inspection of appearance and surface and mechanical property test on the treated product, wherein the inspection of the surface crack of the product adopts magnetic powder detection or ultrasonic detection.
9. A casting process for a pump valve casting according to claim 1, wherein: the finished product comprises the following steps: and packaging and registering the qualified products, and then warehousing and storing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110954833.1A CN113664154A (en) | 2021-08-19 | 2021-08-19 | Casting process for pump valve casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110954833.1A CN113664154A (en) | 2021-08-19 | 2021-08-19 | Casting process for pump valve casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113664154A true CN113664154A (en) | 2021-11-19 |
Family
ID=78544003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110954833.1A Pending CN113664154A (en) | 2021-08-19 | 2021-08-19 | Casting process for pump valve casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113664154A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878304A (en) * | 2014-03-03 | 2014-06-25 | 安徽华通铸业有限公司 | Casting process of pump valve casting |
| CN106111913A (en) * | 2016-06-30 | 2016-11-16 | 娄土岭 | A kind of flange casting technique |
| CN109108221A (en) * | 2018-09-27 | 2019-01-01 | 欧通集团青田万鑫阀门科技有限公司 | The production technology of fast opening and closing power station exhaust check valve casting |
| CN111360207A (en) * | 2020-03-30 | 2020-07-03 | 嘉兴民政石油机械附件厂 | Production process of ball valve for oil well pump |
| CN112387938A (en) * | 2020-09-17 | 2021-02-23 | 南通冠峰铸造有限公司 | Casting process of butterfly valve body |
| CN112662937A (en) * | 2020-12-07 | 2021-04-16 | 安徽省隆兴铸造有限公司 | High-tensile-strength nodular cast iron and valve preparation method thereof |
-
2021
- 2021-08-19 CN CN202110954833.1A patent/CN113664154A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878304A (en) * | 2014-03-03 | 2014-06-25 | 安徽华通铸业有限公司 | Casting process of pump valve casting |
| CN106111913A (en) * | 2016-06-30 | 2016-11-16 | 娄土岭 | A kind of flange casting technique |
| CN109108221A (en) * | 2018-09-27 | 2019-01-01 | 欧通集团青田万鑫阀门科技有限公司 | The production technology of fast opening and closing power station exhaust check valve casting |
| CN111360207A (en) * | 2020-03-30 | 2020-07-03 | 嘉兴民政石油机械附件厂 | Production process of ball valve for oil well pump |
| CN112387938A (en) * | 2020-09-17 | 2021-02-23 | 南通冠峰铸造有限公司 | Casting process of butterfly valve body |
| CN112662937A (en) * | 2020-12-07 | 2021-04-16 | 安徽省隆兴铸造有限公司 | High-tensile-strength nodular cast iron and valve preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈琦等: "《铸件热处理实用手册》", 31 January 2000, 北京：龙门书局 * |
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Application publication date: 20211119 |